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The Skull Skull Body’s most complex bony structure Formed by the cranium and facial bones Cranium – protects brain; site of attachment for head and neck muscles Facial bones – Framework for the face, sense organs, and teeth – Provide openings for passage of air and food – Anchor facial muscles of expression

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Nasal Cavity Constructed of bone and hyaline cartilage Roof – formed by cribiform plate of ethmoid Lateral walls – formed by superior and middle conchae of ethmoid, perpendicular plate of palatine, and inferior nasal conchae Floor – formed by palatine process of the maxillae and by palatine

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Hyoid Bone Not actually part of the skull Lies just inferior to mandible in anterior neck Only bone that does not articulate with another bone Attachment point for neck muscles that raise and lower larynx during swallowing and speech